Home / 129,972.75-179,362.88-70,356.75

Finding the Fourth Proportional to 129,972.75, 179,362.88 and 70,356.75

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Solution

The fourth proportional to 129,972.75, 179,362.88 and 70,356.75 is: 97,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.75 : 179,362.88 = 70,356.75 : x
  2. Step 2: Convert to fraction form
    129,972.75/179,362.88 = 70,356.75/x
  3. Step 3: Cross multiply
    129,972.75x = 179,362.88 × 70,356.75
  4. Step 4: Simplify right side
    129,972.75x = 12,619,388,955.66
  5. Step 5: Solve for x
    x = 12,619,388,955.66/129,972.75
  6. Step 6: Final answer
    x = 97,092.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.